Audio system



FIG. 1 is a front, left perspective view of an audio system showing my new design;

FIG. 2 is a front, right perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof; and

FIG. 8 is a bottom plan view thereof.

FIG. 9 is an enlargement of the portion shown in double dot-dash lines in FIG. 1;

FIG. 10 is an enlargement of the portion shown in double dot-dash lines in FIG. 2; and,

FIG. 11 is an enlargement of the portion shown in double dot-dash lines in FIG. 3.

The even-dash broken lines depict portions of the audio system that form no part of the claimed design. The double dot-dash broken lines in the drawings showing the enlargements form no part of the claimed design. 

CLAIM The ornamental design for an audio system, as shown and described. 